High resolution, multiple-energy linear sweep detector for x-ray imaging
Abstract
Apparatus is disclosed for generating plural electrical signals in a single scan in response to incident X-rays received from an object. Each electrical signal represents an image of the object at a different range of energies of the incident X-rays. The apparatus comprises a first X-ray detector, a second X-ray detector stacked upstream of the first X-ray detector, and an X-ray absorber stacked upstream of the first X-ray detector. The X-ray absorber provides an energy-dependent absorption of the incident X-rays before they are incident at the first X-ray detector, but provides no absorption of the incident X-rays before they are incident at the second X-ray detector. The first X-ray detector includes a linear array of first pixels, each of which produces an electrical output in response to the incident X-rays in a first range of energies. The first X-ray detector also includes a circuit that generates a first electrical signal in response to the electrical output of each of the first pixels. The second X-ray detector includes a linear array of second pixels, each of which produces an electrical output in response to the incident X-rays in a second range of energies, broader than the first range of energies. Themore »
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California (United States)
- OSTI Identifier:
- 372587
- Patent Number(s):
- 5548123
- Application Number:
- PAN: 8-350,854; TRN: 96:023337
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- AC03-76SF00098
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 20 Aug 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; X-RAY DETECTION; RADIATION DETECTORS; DESIGN; ENERGY DEPENDENCE; IMAGES
Citation Formats
Perez-Mendez, V, and Goodman, C A. High resolution, multiple-energy linear sweep detector for x-ray imaging. United States: N. p., 1996.
Web.
Perez-Mendez, V, & Goodman, C A. High resolution, multiple-energy linear sweep detector for x-ray imaging. United States.
Perez-Mendez, V, and Goodman, C A. Tue .
"High resolution, multiple-energy linear sweep detector for x-ray imaging". United States.
@article{osti_372587,
title = {High resolution, multiple-energy linear sweep detector for x-ray imaging},
author = {Perez-Mendez, V and Goodman, C A},
abstractNote = {Apparatus is disclosed for generating plural electrical signals in a single scan in response to incident X-rays received from an object. Each electrical signal represents an image of the object at a different range of energies of the incident X-rays. The apparatus comprises a first X-ray detector, a second X-ray detector stacked upstream of the first X-ray detector, and an X-ray absorber stacked upstream of the first X-ray detector. The X-ray absorber provides an energy-dependent absorption of the incident X-rays before they are incident at the first X-ray detector, but provides no absorption of the incident X-rays before they are incident at the second X-ray detector. The first X-ray detector includes a linear array of first pixels, each of which produces an electrical output in response to the incident X-rays in a first range of energies. The first X-ray detector also includes a circuit that generates a first electrical signal in response to the electrical output of each of the first pixels. The second X-ray detector includes a linear array of second pixels, each of which produces an electrical output in response to the incident X-rays in a second range of energies, broader than the first range of energies. The second X-ray detector also includes a circuit that generates a second electrical signal in response to the electrical output of each of the second pixels. 12 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 20 00:00:00 EDT 1996},
month = {Tue Aug 20 00:00:00 EDT 1996}
}